In December 2025, Vadodara division of Western Railways, Ministry of Railways (MoR), officially commissioned the indigenous ‘Kavach 4.0’ system on the 96 kilometer (km)-long Bajwa(Vadodara)-Ahmedabad section, covering 17 stations, in Gujarat.
- Sankalp Fast (59549/59550) was the 1st Kavach-enabled train on this route.
- What? Commissioning of indigenous Kavach 4.0
- Commissioned by: Vadodara division of Western Railways, MoR
- Where? Bajwa (Vadodara)-Ahmedabad section (Gujarat)
- Purpose: To enhance train safety, prevent collision and improve speed control
- Overall Deployment: Over 2,200 route km implemented so far
About Kavach System:
Purpose: Kavach, an indigenously developed Automatic Train Protection (ATP) of Indian Railways (IR), is designed to prevent Signal Passing at Danger (SPAD), control over-speeding, and avert head-on and rear-end collisions.
Safety Level: The system operates at Safety Integrity Level-4 (SIL-4), the highest safety standard for train control systems.
Key Technologies Used: It uses Radio Frequency Identification (RFID) tags and Ultra High Frequency (UHF) radio communication, enabling real-time exchange of data between track equipment, signals, and locomotives, and providing continuous alerts to loco pilots.
- Till date, IR has implemented Kavach on over 2,200 route km.
About Kavach 4.0:
Advanced Version: In July 2024, Kavach 4.0 received the formal approval from the Research Designs & Standards Organisation (RDSO), a technical body of the MoR.
Key Enhancements: The upgraded Kavach system features improved location accuracy, enhanced signal detection in complex yards, seamless interlocking integration, and optical fibre–based station-to-station connectivity.
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